1307111823 has 12 divisors (see below), whose sum is σ = 1957978568. Its totient is φ = 871407720.

The previous prime is 1307111803. The next prime is 1307111837. The reversal of 1307111823 is 3281117031.

It is a happy number.

It is not a de Polignac number, because 1307111823 - 2²⁵ = 1273557391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307111803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2689288 + ... + 2689773.

Almost surely, 2^1307111823 is an apocalyptic number.

1307111823 is a deficient number, since it is larger than the sum of its proper divisors (650866745).

1307111823 is an frugal number, since it uses more digits than its factorization.

1307111823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5379076 (or 5379064 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1307111823 is about 36154.0014797809. The cubic root of 1307111823 is about 1093.3794681624.

Adding to 1307111823 its reverse (3281117031), we get a palindrome (4588228854).

The spelling of 1307111823 in words is "one billion, three hundred seven million, one hundred eleven thousand, eight hundred twenty-three".